Information about Mt. Takao: https://en.wikipedia.org/wiki/Mount_T...
Yakuoin Tample: https://takaosan.or.jp/english/
Click below link or photo to view full recipe
Onigirazu is a rice ball (onigiri or omusubi in Japanese) that is NOT squeezed tightly into the traditional shape, like round or triangle. You can put more fillings inside, as the “rice ball” shape is square and you can spread the ingredients just like how you lay them out for a sandwich. You wrap the fillings from the four corners of nori. So it is kind of like a “wrapped rice ball”.